Airflow assembly for realizing mildew prevention of granary by using forced airflow

Abstract

The invention relates to the field of granary mildew prevention, aims at solving the problems that a granary ventilation assembly cannot automatically adapt to the environment condition in a granary and cannot continue to conduct ventilation when the external environment is poor, and particularly relates to an airflow assembly for achieving granary mildew prevention through forced airflow. By means of the conveying hole channels formed in the outer wall of the granary and the center of the granary, the air inlet ventilation process of the granary is an air flow path from the outer wall to the circle center, the stroke of air flow is shortened, and the ventilation effect is improved; the temperature and the humidity of gas entering the granary can be adjusted, it is guaranteed that continuous gas inlet ventilation can still be kept in the state that the external environment of the granary changes, the gas exhausted from the granary is detected, the environment condition in the granary is estimated according to the detection result of the exhausted gas, and the granary ventilation effect is improved. And the ventilation adjustment of the granary is more suitable for the actual condition in the granary.

Description

Technical Field

[0001] The invention relates to the field of mildew prevention of granaries, and in particular to an airflow component that utilizes forced airflow to achieve mildew prevention of granaries. Background Art

[0002] Grain is an important and indispensable food in human life, and the storage quality of grain is directly related to people's quality of life and health. However, grain is often attacked by insect pests, moisture and mold during storage, which leads to the decline of grain quality or even deterioration. In order to ensure the quality and safety of grain, a series of measures must be taken to prevent insects, moisture and mold. Therefore, granaries, as spaces for storing grains, must have good moisture-proof and ventilation functions to prevent grains from getting moldy and rotting, thereby maintaining the quality of grains. At the same time, it is also necessary to control the temperature to prevent deterioration and extend the storage period of grains.

[0003] Due to the accumulation of a large amount of grain in the granary, the air flow permeability in the center of the granary becomes poor, making the center of the granary more likely to be in a high temperature and high humidity state. Therefore, in order to increase the storage period of grain in the granary, the granary is generally equipped with an active ventilation component. The existing patent CN206365280U discloses a technical solution, in which the ventilation performance of the granary is improved by fan ventilation, and the air intake is filtered to prevent the intake from polluting the grain inside the granary. However, during the use of this solution, the fan ventilation method needs to be manually opened and closed or continuously opened, and the manual opening and closing of the fan increases the workload of the staff. At the same time, the opening and closing of the fan is more dependent on experience, which cannot adapt well to the actual situation in the granary. Continuous fan operation will cause the granary to consume too much energy. At the same time, because the filter component is for solid impurities such as dust and insect eggs, when the external humidity is too high, it can only prevent moisture from entering by stopping ventilation, which limits the operation of the ventilation component in the granary;

[0004] In view of the above technical problems, this application proposes a solution. Summary of the invention

[0005] The present invention arranges conveying channels on the outer wall of the granary and the center of the granary, so that the air intake and ventilation process of the granary is an airflow path from the outer wall to the center of the circle, shortens the airflow stroke, and improves the ventilation effect. At the same time, a gas pretreatment component is added to the air intake front end of the granary ventilation, which can adjust the temperature and humidity of the gas entering the granary to ensure continuous air intake and ventilation when the external environment of the granary changes, solves the problem that the granary ventilation component cannot automatically adapt to the environmental conditions in the granary and cannot continue to ventilate when the external environment is not good, and proposes an airflow component that uses forced airflow to achieve mildew prevention of the granary.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] An airflow component for achieving mildew prevention of a grain silo by using forced airflow comprises a structural silo wall, an airflow silo wall is fixedly installed inside the structural silo wall, an air intake bottom ring is fixedly installed at the bottom end of the structural silo wall, the top end of the air intake bottom ring is connected to the airflow silo wall, and the inner wall of the airflow silo wall is provided with a plurality of groups of small holes, and the air inside the airflow silo wall is discharged through the small holes;

[0008] A gas collecting pipeline is fixedly installed at the central part of the bottom surface of the structural warehouse wall, and a plurality of small holes are opened on the outer wall of the gas collecting pipeline. The bottom of the gas collecting pipeline passes through the bottom surface of the structural warehouse wall, and an exhaust port is fixedly installed at the bottom of the gas collecting pipeline;

[0009] The outer wall of the air intake bottom ring is connected to a gas processing chamber through a pipeline. The gas processing chamber draws in external air through an air inlet, and transports the external air to the air intake bottom ring through a pipeline after pre-processing the external air inside the gas processing chamber. When the gas processing chamber is pre-processing the gas, the operation of the gas processing chamber is controlled by the airflow component control system.

[0010] As a preferred embodiment of the present invention, it also includes an airflow component control system, which includes an exhaust collection unit, an air volume monitoring unit, an intake control unit, an environment collection unit, and a mildew prevention evaluation unit;

[0011] The exhaust gas collection unit is used to collect the exhaust gas temperature and exhaust gas humidity in the exhaust port, and send the exhaust gas temperature and exhaust gas humidity to the mildew prevention evaluation unit;

[0012] The mildew prevention evaluation unit can perform numerical simulation on the exhaust temperature and exhaust humidity, generate mildew suitability, evaluate the warehouse environment according to the mildew suitability, and send the evaluation result to the air volume monitoring unit;

[0013] The air volume monitoring unit generates a gas control signal according to the evaluation result, and sends the gas control signal to the air intake control unit;

[0014] The air intake collection unit is used to execute the gas control signal and exchange information with the environment collection unit. The environment collection unit is used to collect environmental information and control the operation status in the gas processing chamber according to the environmental information.

[0015] As a preferred embodiment of the present invention, after the mildew prevention evaluation unit obtains the exhaust temperature and exhaust humidity, the exhaust temperature and exhaust humidity are substituted into the data model for analysis to generate the mildew suitability M, M = log a RH-q*[(T-k1) 2+k], where a, q, k1 and k are preset coefficients, RH is exhaust humidity, T is exhaust temperature, and the mildew suitability is compared with the preset threshold. If the mildew suitability is greater than the preset threshold, an abnormal signal in the warehouse is generated, and the ratio of the mildew suitability to the preset threshold is calculated and recorded as the abnormal amplitude;

[0016] After generating the abnormal signal in the warehouse, the mildew prevention evaluation unit sends the abnormal signal in the warehouse and the abnormal amplitude to the air volume monitoring unit.

[0017] As a preferred embodiment of the present invention, after receiving the abnormal signal in the warehouse, the air volume monitoring unit obtains the currently running ventilation air volume and records it as the initial air volume. The air volume monitoring unit performs weight calculation according to the abnormal amplitude, generates an air volume increase ratio, and increases the initial running air volume according to the air volume increase ratio;

[0018] When the air volume monitoring unit increases the ventilation air volume, it simultaneously generates a gas control signal and sends the gas control signal to the air intake control unit.

[0019] As a preferred embodiment of the present invention, the environment acquisition unit obtains the ambient temperature and ambient humidity outside the gas processing chamber, and generates a temperature adjustment signal if the difference between the ambient temperature and the preset standard intake temperature is greater than the preset difference, and generates an intake temperature suitable signal if the difference between the ambient temperature and the preset standard intake temperature is not greater than the preset difference;

[0020] The ambient humidity is compared with the preset standard intake air humidity. If the ambient humidity is lower than the preset standard intake air humidity, an intake air humidity suitability signal is generated. If the ambient humidity is not lower than the preset standard intake air humidity, a humidity adjustment signal is generated, and the difference between the ambient humidity and the preset standard intake air humidity is calculated. The dehumidification component power is controlled according to the difference.

[0021] As a preferred embodiment of the present invention, after obtaining the increase ratio of the ventilation air volume, the air intake control unit obtains the operating power of the temperature control component and the dehumidification component in the current gas processing warehouse through the environment acquisition unit. If the current temperature control component or dehumidification component is not in operation, the corresponding temperature control component or dehumidification component is ignored. The air intake control unit performs proportional calculation through the ventilation air volume increase ratio, generates a power increase ratio, and sends the power increase ratio to the gas processing warehouse.

[0022] As a preferred embodiment of the present invention, after adjusting the initial air volume, the air volume monitoring unit generates an air volume verification signal and sends the air volume verification signal to the exhaust gas collection unit.

[0023] As a preferred embodiment of the present invention, when the exhaust gas collection unit receives the air volume verification signal, it continuously verifies the exhaust temperature and exhaust humidity at the exhaust port, and generates a new mildew suitability. If the new mildew suitability is still greater than the preset threshold, it does not respond. If the new mildew suitability changes to less than the preset threshold, it generates a ventilation completion signal and sends the ventilation completion signal to the air volume monitoring unit.

[0024] The air volume monitoring unit changes the ventilation air volume to the initial air volume after obtaining the ventilation completion signal.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. In the present invention, by setting the conveying channels on the outer wall of the granary and the center of the granary, the air intake ventilation process of the granary is an airflow path from the outer wall to the center of the circle, shortening the airflow stroke, making it more conducive to the passage of airflow and improving the ventilation effect. At the same time, adding a gas pretreatment component at the air intake front end of the granary ventilation can adjust the gas temperature and gas humidity entering the granary, ensuring that continuous air intake ventilation can be maintained when the external environment of the granary changes, thereby improving the adaptability of the granary to different external environments.

[0027] 2. In the present invention, during the ventilation of the granary, the ventilated gas is discharged through the air duct inside the granary, and the discharged gas is detected. The environmental conditions in the granary are estimated based on the detection results of the discharged gas, thereby providing basic conditions for the ventilation and ventilation regulation of the granary, making the ventilation and ventilation regulation of the granary more in line with the actual conditions inside the granary.

[0028] 3. In the present invention, when the granary is undergoing ventilation adjustment, the operation of the gas treatment bin is automatically controlled according to the ventilation operation rate to ensure that the gas regulation effect of the gas treatment bin meets the air intake demand when the air intake speed changes. At the same time, the actual operating power consumption of the air intake treatment bin can be reduced when the air intake speed is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0030] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0031] Figure 2 It is a bottom view structural schematic diagram of the present invention;

[0032] Figure 3 is a system block diagram of the present invention;

[0033] Figure 4 It is a system flow chart of the present invention.

[0034] In the figure: 1. Structural warehouse wall; 2. Air intake bottom ring; 3. Gas processing warehouse; 4. Exhaust port; 5. Gas collecting pipeline; 6. Air flow warehouse wall. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Embodiment 1:

[0037] See also Figure 1 - Figure 4 As shown, an airflow component for realizing mildew prevention of a granary by using forced airflow comprises a structural bin wall 1, an airflow bin wall 6 is fixedly installed inside the structural bin wall 1, an air intake bottom ring 2 is fixedly installed at the bottom end of the structural bin wall 1, the top end of the air intake bottom ring 2 is connected with the airflow bin wall 6, air is supplied to the inside of the airflow bin wall 6 through the air intake bottom ring 2, and the inner wall of the airflow bin wall 6 is provided with a plurality of groups of small holes, and the air inside the airflow bin wall 6 is discharged through the small holes;

[0038] A gas collecting pipeline 5 is fixedly installed at the central part of the bottom surface of the structural warehouse wall 1. The outer wall of the gas collecting pipeline 5 is provided with a plurality of small holes. The gas ejected from the gas flow warehouse wall 6 enters the inside of the gas collecting pipeline 5 through the small holes outside the gas collecting pipeline 5. The bottom of the gas collecting pipeline 5 passes through the bottom surface of the structural warehouse wall 1. An exhaust port 4 is fixedly installed at the bottom of the gas collecting pipeline 5.

[0039] The outer wall of the air intake bottom ring 2 is connected to the gas processing chamber 3 through a pipeline. The gas processing chamber 3 absorbs external air through the air inlet, and transports the external air to the air intake bottom ring 2 through the pipeline after pre-processing the external air inside the gas processing chamber 3. When the gas processing chamber 3 pre-processes the gas, the operation of the gas processing chamber 3 is controlled by the airflow component control system.

[0040] Embodiment 2:

[0041] See also Figure 1 - Figure 4 As shown, the airflow component control system includes an exhaust collection unit, an air volume monitoring unit, an intake control unit, an environment collection unit, and a mildew prevention evaluation unit;

[0042] The exhaust gas collection unit detects the gas exhausted from the exhaust port 4 to obtain the temperature and humidity of the exhaust gas. The exhaust gas collection unit sends the exhaust temperature and exhaust humidity to the mildew prevention evaluation unit. When collecting the exhaust temperature and exhaust humidity, the exhaust gas collection unit uses the average value of the temperature collected multiple times within the set interval as the exhaust temperature, and uses the average value of the humidity collected multiple times within the set time interval as the exhaust humidity;

[0043] After the mildew prevention evaluation unit obtains the exhaust temperature and exhaust humidity, it substitutes the exhaust temperature and exhaust humidity into the data model for analysis and generates the mildew suitability M, M = log a RH-q*[(T-k1) 2 +k], where a, q, k1 and k are preset coefficients, RH is exhaust humidity, T is exhaust temperature, and the mildew suitability is compared with the preset threshold. If the mildew suitability is greater than the preset threshold, an abnormal signal in the warehouse is generated, and the ratio of the mildew suitability to the preset threshold is calculated and recorded as the abnormal amplitude. If the mildew suitability is not greater than the preset threshold, a normal signal in the warehouse is generated;

[0044] After generating a normal signal in the warehouse, the anti-mildew evaluation unit sends the normal signal in the warehouse through the network. After generating an abnormal signal in the warehouse, the anti-mildew evaluation unit sends the abnormal signal in the warehouse and the abnormal amplitude to the air volume monitoring unit.

[0045] After receiving the abnormal signal in the warehouse, the air volume monitoring unit obtains the current ventilation air volume and records it as the initial air volume. The air volume monitoring unit performs weight calculation according to the abnormal amplitude, generates an air volume increase ratio, and increases the initial air volume according to the air volume increase ratio.

[0046] When the air volume monitoring unit increases the ventilation volume, it also generates a gas control signal and sends the gas control signal to the air intake control unit. The air intake control unit adjusts the gas pretreatment efficiency of the gas processing chamber 3 according to the increase ratio of the ventilation volume.

[0047] Embodiment three:

[0048] See also Figure 1 - Figure 4As shown, the environment collection unit collects the environment information outside the gas processing chamber 3, obtains the environment temperature and environment humidity, and compares the environment temperature with the preset standard intake temperature. If the difference between the environment temperature and the preset standard intake temperature is greater than the preset difference, a temperature adjustment signal is generated, and the temperature of the gas passing through the gas processing chamber 3 is controlled by the temperature control component inside the gas processing chamber 3, so that the temperature output in the gas processing chamber 3 meets the preset standard intake temperature. If the difference between the environment temperature and the preset standard intake temperature is not greater than the preset difference, an intake temperature suitable signal is generated, so that the temperature control component inside the gas processing chamber 3 stops working;

[0049] The ambient humidity is compared with the preset standard intake air humidity. If the ambient humidity is less than the preset standard intake air humidity, an intake air humidity suitability signal is generated, and the dehumidification component inside the gas processing chamber 3 is controlled to stop working. If the ambient humidity is not less than the preset standard intake air humidity, a humidity adjustment signal is generated, and the difference between the ambient humidity and the preset standard intake air humidity is calculated. The power of the dehumidification component is controlled according to the difference, and the intake air humidity is adjusted by the dehumidification component so that the intake air humidity meets the preset intake air humidity standard.

[0050] After obtaining the increase ratio of the ventilation air volume, the air intake control unit obtains the operating power of the temperature control component and the dehumidification component in the current gas processing chamber 3 through the environment collection unit. If the current temperature control component is not in operation, the temperature control component is ignored. If the dehumidification component is not in operation, the dehumidification component is ignored. The air intake control unit multiplies the ventilation air volume increase ratio by the proportional coefficient to generate a power increase ratio, and sends the power increase ratio to the gas processing chamber 3, so that the gas processing chamber 3 adjusts the operating power of the dehumidification component and the temperature control component.

[0051] Embodiment 4:

[0052] See also Figure 1 - Figure 4 As shown, after adjusting the initial air volume, the air volume monitoring unit generates an air volume verification signal and sends the air volume verification signal to the mildew prevention evaluation unit;

[0053] When receiving the air volume verification signal, the mildew prevention evaluation unit continuously verifies the exhaust temperature and exhaust humidity at the exhaust port 4, and generates a new mildew suitability. If the new mildew suitability is still greater than the preset threshold, no response is made. If the new mildew suitability is changed to be less than the preset threshold, a ventilation completion signal is generated and sent to the air volume monitoring unit.

[0054] The air volume monitoring unit changes the ventilation air volume to the initial air volume after obtaining the ventilation completion signal.

[0055] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An airflow component for achieving mildew prevention in granaries by using forced airflow, characterized in that: It comprises a structural bin wall (1), an airflow bin wall (6) is fixedly installed inside the structural bin wall (1), an air intake bottom ring (2) is fixedly installed at the bottom end of the structural bin wall (1), the top end of the air intake bottom ring (2) is connected to the airflow bin wall (6), and the inner wall of the airflow bin wall (6) is provided with a plurality of groups of small holes, and the air inside the airflow bin wall (6) is discharged through the small holes; A gas collecting pipeline (5) is fixedly installed at the central part of the bottom surface of the structural warehouse wall (1), and a plurality of groups of small holes are provided on the outer wall of the gas collecting pipeline (5). The bottom of the gas collecting pipeline (5) passes through the bottom surface of the structural warehouse wall (1), and an exhaust port (4) is fixedly installed at the bottom of the gas collecting pipeline (5); The outer wall of the air intake bottom ring (2) is connected to a gas processing chamber (3) via a pipeline. The gas processing chamber (3) absorbs external air via an air inlet, and pre-processes the external air inside the gas processing chamber (3) before transporting the air to the air intake bottom ring (2) via a pipeline. When the gas processing chamber (3) pre-processes the gas, the operation of the gas processing chamber (3) is controlled by an airflow component control system.

2. The airflow assembly for achieving mildew prevention of granaries using forced airflow according to claim 1, characterized in that: It also includes an airflow component control system, which includes an exhaust collection unit, an air volume monitoring unit, an intake control unit, an environment collection unit, and a mildew prevention evaluation unit; The exhaust gas collection unit is used to collect the exhaust gas temperature and exhaust gas humidity in the exhaust port (4), and send the exhaust gas temperature and exhaust gas humidity to the mildew prevention evaluation unit; The mildew prevention evaluation unit can perform numerical simulation on the exhaust temperature and exhaust humidity, generate mildew suitability, evaluate the warehouse environment according to the mildew suitability, and send the evaluation result to the air volume monitoring unit; The air volume monitoring unit generates a gas control signal according to the evaluation result, and sends the gas control signal to the air intake control unit; The air intake collection unit is used to execute the gas control signal and to exchange information with the environment collection unit. The environment collection unit is used to collect environmental information and to control the operation of the gas processing chamber (3) according to the environmental information.

3. The airflow assembly for achieving mildew prevention of granaries using forced airflow according to claim 2, characterized in that: After the mildew prevention evaluation unit obtains the exhaust temperature and exhaust humidity, it substitutes the exhaust temperature and exhaust humidity into the data model for analysis to generate the mildew suitability M, M=log a RH-q*[(T-k1) 2 +k], where a, q, k1 and k are preset coefficients, RH is exhaust humidity, T is exhaust temperature, and the mildew suitability is compared with the preset threshold. If the mildew suitability is greater than the preset threshold, an abnormal signal in the warehouse is generated, and the ratio of the mildew suitability to the preset threshold is calculated and recorded as the abnormal amplitude; After generating the abnormal signal in the warehouse, the mildew prevention evaluation unit sends the abnormal signal in the warehouse and the abnormal amplitude to the air volume monitoring unit.

4. The airflow assembly for achieving mildew prevention in a granary by using forced airflow according to claim 2, characterized in that: After receiving the abnormal signal in the warehouse, the air volume monitoring unit obtains the currently running ventilation air volume and records it as the initial air volume. The air volume monitoring unit performs weight calculation according to the abnormal amplitude, generates an air volume increase ratio, and increases the initial running air volume according to the air volume increase ratio; When the air volume monitoring unit increases the ventilation air volume, it simultaneously generates a gas control signal and sends the gas control signal to the air intake control unit.

5. The airflow assembly for achieving mildew prevention in a granary using forced airflow according to claim 2, characterized in that: The environment acquisition unit acquires the environment temperature and environment humidity outside the gas processing chamber (3), and generates a temperature adjustment signal if the difference between the environment temperature and the preset standard intake temperature is greater than the preset difference, and generates an intake temperature suitable signal if the difference between the environment temperature and the preset standard intake temperature is not greater than the preset difference; The ambient humidity is compared with the preset standard intake air humidity. If the ambient humidity is lower than the preset standard intake air humidity, an intake air humidity suitability signal is generated. If the ambient humidity is not lower than the preset standard intake air humidity, a humidity adjustment signal is generated, and the difference between the ambient humidity and the preset standard intake air humidity is calculated. The dehumidification component power is controlled according to the difference.

6. The airflow assembly for achieving mildew prevention of a granary using forced airflow according to claim 4, characterized in that: After obtaining the ventilation air volume increase ratio, the air intake control unit obtains the operating power of the temperature control component and the dehumidification component in the current gas processing chamber (3) through the environment acquisition unit. If the current temperature control component or the dehumidification component is not in operation, the corresponding temperature control component or the dehumidification component is ignored. The air intake control unit performs proportional calculation based on the ventilation air volume increase ratio, generates a power increase ratio, and sends the power increase ratio to the gas processing chamber (3).

7. The airflow assembly for achieving mildew prevention in a granary using forced airflow according to claim 2, characterized in that: After adjusting the initial air volume, the air volume monitoring unit generates an air volume verification signal and sends the air volume verification signal to the exhaust gas collection unit.

8. The airflow assembly for achieving mildew prevention in a granary using forced airflow according to claim 7, characterized in that: When the exhaust gas collection unit receives the air volume verification signal, it continuously verifies the exhaust gas temperature and exhaust gas humidity at the exhaust port (4) and generates a new mildew suitability. If the new mildew suitability is still greater than the preset threshold, no response is made. If the new mildew suitability is changed to be less than the preset threshold, a ventilation completion signal is generated and the ventilation completion signal is sent to the air volume monitoring unit. The air volume monitoring unit changes the ventilation air volume to the initial air volume after obtaining the ventilation completion signal.

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